An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

Permanent → deformation of a → solid subjected to a → stress.

→ plastic; → deformation.

A substance which remains → deformed after an applied → force ceases to act.

→ plastic; → substance.

The property which enables a material to be → deformed permanently without → rupture during the application of a → force. An → elastic material becomes plastic above its → yield point. See also → elasticity, → ductility.

→ plastic; → -ity.

Same as → last scattering surface.

→ surface; → last; → scattering.

An optical device for producing and analyzing polarized light. It divides incoming unpolarized light into two orthogonal, linearly polarized beams. It consists of two prisms of either quartz or calcite cemented together.

After the English scientist William Hyde Wollaston (1766-1828); → prism.